<template>
  <div :class="className" :style="{ height: height, width: width }" />
</template>

<script>
import echarts from "echarts";
require("echarts/theme/macarons"); // echarts theme
import { Departments } from "@/api/home";
import resize from "./mixins/resize";

export default {
  mixins: [resize],
  props: {
    className: {
      type: String,
      default: "chart",
    },
    width: {
      type: String,
      default: "100%",
    },
    height: {
      type: String,
      default: "300px",
    },
  },
  data() {
    return {
      DepartmentsList: [],
      DepartmentsListName: [],
      chart: null,
    };
  },
  mounted() {
    this.$nextTick(() => {
      this.initChart();
    });
  },
  beforeDestroy() {
    if (!this.chart) {
      return;
    }
    this.chart.dispose();
    this.chart = null;
  },
  methods: {
    initChart() {
      Departments()
        .then((res) => {
          this.DepartmentsList = res.data;
          this.DepartmentsList.forEach((value, index) => {
            this.DepartmentsListName[index] = value.name;
          });

          this.chart = echarts.init(this.$el, "macarons");

          this.chart.setOption({
            tooltip: {
              trigger: "item",
              formatter: "{a} <br/>{b} : {c} ({d}%)",
            },
            legend: {
              left: "center",
              bottom: "10",
              data: this.DepartmentsListName,
            },
            series: [
              {
                name: "本月科室",
                type: "pie",
                roseType: "radius",
                radius: [15, 95],
                center: ["50%", "38%"],
                data: this.DepartmentsList,
                animationEasing: "cubicInOut",
                animationDuration: 2600,
              },
            ],
          });
        })
        .catch((res) => {});
    },
  },
};
</script>
